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LOL! Well, her exact words were, "When you are done looking at the stars." But she sez it cost too much to leave outside. So unreasonable! -- SonnyE Sonny's Youtube Channel (

Update: I opened up a bearing this morning (the ones from McMaster Carr). It turns out your suspicions as well as my uncertainty in trusting the CAD drawings is correct. There are 8 balls and a

I've had a quick look online - SKF have CAD drawings of their R4-2Z bearings, which suggests they have 8 balls, whereas NTN has a CAD drawing of their R4-ZZ bearings which suggest they have 7 balls.

How about a compromise...... put a cheap (like $200) Windows mini-PC at the scope and let it host all the Windows specific programs you need. Then use your Mac to connect to it via remote desktop

I worked in the lubricants business for 30 years and the bearings used in the worm blocks are sealed and “fill for life” with grease. I don’t think it will be easy to take these apart and

Geoff, I wouldn’t worry about polar alignment if using the AAP as the AAP has a pretty good routine and easy to follow. It uses the primary scope and camera so no additional kit needed. I can get a

Sonny, You should mention to the CFO that most Astronomy happens at night :) Paul

Robert, I get you now, I assumed you just used the finder scope by eye not the main scope. Seems like a good approach if you don’t have go to though. Paul

Geoff, A couple of things: -Bracken's book is for beginners, ergo, it's a "Primer". It's a nice starting point where all the info is in one place. I'm sure there are many other authors out there too.

This is the link to the bearings *which may* have 12 balls https://www.mcmaster.com/3759T58/ This is the link to the bearings which DO have 8 balls and a retainer

Some questions.. Is there a link for the 12 ball bearings that I missed?? But for these, are they meant to be opened and packed with grease?? What about the "stock versions"?? I don't remember what

I think the 12 balls would be better or smoother. So we will be happy to see good results from your testing! I only found the 8 ball design, shown here. Good for you!!! Thanks for discovering this

devices for PA. polemaster has a mac client not really. you can try to refine your altitude adjustment by using the degrees marker on the RA axis, but that's just roughing it in

John, Thanks for the reply. ?I am onto the first three suggestions, and have been digging in. Bracken's book, though, assume a lot of AP knowledge that I don't yet have. On the rest of your list,

Thanks again Derek! I'm looking forward to testing! Michael, Here is the link to my guide scope I was using during the first night of testing along with the ASI120mm:

The Stellarvue 50mm finder / guider is f4 and says 210mm.. Similar models are ubiquitous.. Derek _____ Sent: Thursday, January 28, 2021 4:52 PM To: [email protected] Subject: Re:

Quick update: Decided to dive into researching the bearings I purchased from McMaster Carr compared to the Boca Bearings. I was able to download each one's CAD files and open them up and get a section

The worm will be mailed tomorrow.. Derek _____ Sent: Thursday, January 28, 2021 4:16 PM To: [email protected] Subject: Re: [Losmandy_users_io] Used GM-8 Guiding Help Wow, I am blown away by all

No problem here. My CFO insists I bring my toys in at night. So mine is configured to break down for portability by mule train. And I'm the jackass carrying the parts. LOL! So when the Doctor asks if

Nick, One other thing puzzles me. You said your guide scope is 50mm f/4. I looked but could not find one. I have several 50mm 8X magnification guide scopes. I'm not sure what their FL is. I did find a